NL7711477A - Gegevenverwerkingstoestel, in het bijzonder sleuteltoestel. - Google Patents

Gegevenverwerkingstoestel, in het bijzonder sleuteltoestel.

Info

Publication number
NL7711477A
NL7711477A NL7711477A NL7711477A NL7711477A NL 7711477 A NL7711477 A NL 7711477A NL 7711477 A NL7711477 A NL 7711477A NL 7711477 A NL7711477 A NL 7711477A NL 7711477 A NL7711477 A NL 7711477A
Authority
NL
Netherlands
Prior art keywords
data processing
processing device
especially key
key device
data
Prior art date
Application number
NL7711477A
Other languages
English (en)
Original Assignee
Europ Handelsges Anst
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Europ Handelsges Anst filed Critical Europ Handelsges Anst
Publication of NL7711477A publication Critical patent/NL7711477A/nl

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
    • H04L9/065—Encryption by serially and continuously modifying data stream elements, e.g. stream cipher systems, RC4, SEAL or A5/3
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0891—Revocation or update of secret information, e.g. encryption key update or rekeying

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Credit Cards Or The Like (AREA)
  • Storage Device Security (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Conveying Record Carriers (AREA)
NL7711477A 1976-11-10 1977-10-19 Gegevenverwerkingstoestel, in het bijzonder sleuteltoestel. NL7711477A (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1416276A CH599630A5 (nl) 1976-11-10 1976-11-10

Publications (1)

Publication Number Publication Date
NL7711477A true NL7711477A (nl) 1978-05-12

Family

ID=4398504

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7711477A NL7711477A (nl) 1976-11-10 1977-10-19 Gegevenverwerkingstoestel, in het bijzonder sleuteltoestel.

Country Status (10)

Country Link
US (1) US4162762A (nl)
BE (1) BE860549A (nl)
CH (1) CH599630A5 (nl)
DE (1) DE2747878A1 (nl)
FR (1) FR2371012A1 (nl)
GB (1) GB1560308A (nl)
IT (1) IT1087208B (nl)
NL (1) NL7711477A (nl)
NO (1) NO773648L (nl)
SE (1) SE421842B (nl)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH664225A5 (de) * 1984-07-20 1988-02-15 Alos Ag Vorrichtung zum detektieren von optischen zeichen auf einem relativ zur vorrichtung bewegten filmtraeger.

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1150415A (fr) * 1956-05-02 1958-01-13 Cie Ind Des Telephones Perfectionnements aux dispositifs lecteurs de bandes perforées
NL272974A (nl) * 1960-12-29
US3207845A (en) * 1963-03-12 1965-09-21 Powers & Eaton Ind Inc Line-casting machine
US3461305A (en) * 1967-02-13 1969-08-12 Atomic Energy Commission System for controlling the response of a photoelectric tape reader by utilizing an "or" gate and a delay to simulate sprocket hole signals
DE2037148B2 (de) * 1970-07-27 1973-03-22 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Anordnung zur fehlerfreien erzeugung von taktsignalen bei der abtastung der taktspur eines lochstreifens
US3752959A (en) * 1971-12-20 1973-08-14 Superior Electric Co Perforated tape reader
US3763355A (en) * 1971-12-29 1973-10-02 Texas Instruments Inc Dynamic position-actuated card reader
US3883723A (en) * 1973-11-15 1975-05-13 Varisystems Corp Paper tape reader

Also Published As

Publication number Publication date
FR2371012A1 (fr) 1978-06-09
NO773648L (no) 1978-05-11
SE7712628L (sv) 1978-05-11
SE421842B (sv) 1982-02-01
BE860549A (fr) 1978-03-01
FR2371012B1 (nl) 1984-06-29
CH599630A5 (nl) 1978-05-31
US4162762A (en) 1979-07-31
DE2747878A1 (de) 1978-05-11
IT1087208B (it) 1985-06-04
GB1560308A (en) 1980-02-06

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Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
A85 Still pending on 85-01-01
BC A request for examination has been filed
BV The patent application has lapsed